Are there mosquitoes in Grenada? Yes, and dengue has risen since August.

Yes. Grenada has mosquitoes all year, including Aedes aegypti, the day-biting species that spreads dengue, and dengue cases climbed from August 2026 into at least early October. January to April is the dry season, when bites are fewer, so for a winter trip the practical answer is a daytime repellent habit and a quick look at the latest numbers before you fly.

Dengue has been rising since August

On August 27 the Ministry of Health reported 23 new dengue cases for the week of August 16–22, up from 6 the week before. Eleven were seen at the General Hospital in St. George's and 6 at Princess Royal Hospital on Carriacou. The ministry called the jump a worrying sign and said it was scaling up mosquito control. Hospital counts show where people were treated, which isn't always where they were bitten.

The Pan American Health Organization's weekly tables show the longer curve. Grenada reported 2 to 5 suspected cases a week through the end of July, then 12 to 20 a week from late August into early October, for 229 suspected cases in 2026 by early October. No outbreak has been declared, there is no CDC travel notice, and Grenada isn't on the CDC's global dengue list. The island has seen rises like this before, in 2018, 2023 and 2024.

For a winter trip, the question is whether the rise is still going in December. The newest regional figures stop in early October, so check the Ministry of Health's latest dengue update the week before you fly. The routine stays the same either way. Aedes mosquitoes bite in daylight, with peaks after sunrise and in the late afternoon, so repellent goes on over sunscreen in the morning, again after swimming and again before sunset. Our dengue & Zika routine has the full schedule.

Where the bites are

Bite levels in Grenada change a lot from one property to the next. Mosquitoes are most noticeable from dusk into the night. Sand flies, the tiny biting midges Americans call no-see-ums, work on beaches and hotel grounds in the early morning and from late afternoon, going for ankles and lower legs. Breezy beaches and hillsides tend to fare better, and some quiet villas and B&Bs get more bites than the big resort beach. Visitors say a few mosquitoes are around all year, with more in the wetter months.

Spray your feet and calves before an early beach walk or a sunset drink, close screen doors before dusk, and pick an air-conditioned or well-screened room, especially in a villa. Our Barbados sand fly guide explains the midge's schedule.

Where you're going

Here is how the main areas compare for a December–April trip.

Pairing Grenada with Saint Lucia? Our St. Lucia briefing covers Rodney Bay, Castries and the Pitons.

What travelers report

Paraphrased from forum threads and linked so you can read them in full. Neither is dated, and bites in Grenada vary a lot from one property to the next.

• B&B in Lance aux Épines

  A couple at a Lance aux Épines B&B said they were being eaten alive, with legs that looked like chickenpox after two days. Replies suggested asking the B&B owners for advice and said they had had no problems in other areas such as Grand Anse Beach. TripAdvisor ↗

• Grenadian by Rex Resorts (Grand Anse) · year-round; more in wet season

  Replies said mosquitoes are not a particular problem at the resort, with a few all year and more in the wet season. One said the resort's lake is brackish and cannot support mosquitoes, and a guest reported only two bites in two weeks. TripAdvisor ↗

Two last notes. The CDC's Grenada page lists Zika, so if you're pregnant, review the CDC's Zika guidance with a healthcare provider before you go. And any fever during or after your trip means a doctor visit, and you tell them you were in Grenada. Dengue usually shows up within two weeks of the bite.

Traveler questions